<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>亲密数</title>
</head>
<body>
    <script>
        function factorSum(n) {
            var sum = 0;
            for (var i = 1 ; i < n ; i++) {
                if (n % i === 0) {
                    sum+=i;
                }
            }
            return sum;
        }

        for (var i = 1 ; i <=2000 ; i++) {
            if (factorSum(i) === i) {
                console.log(i)
            }
        }
    </script>
</body>
</html>